Bulletin of the American Physical Society
20th Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter
Volume 62, Number 9
Sunday–Friday, July 9–14, 2017; St. Louis, Missouri
Session A1: Plenary I: George E. Duvall Shock Compression Science AwardPlenary
|
Hide Abstracts |
Chair: Damian Swift, Lawrence Livermore National Laboratory Room: Grand Ballroom DE |
Monday, July 10, 2017 8:00AM - 9:00AM |
A1.00001: George E. Duvall Shock Compression Science Award Talk: Extreme Materials Behavior in Laser-Induced Shock Invited Speaker: Marc Meyers The use of high-power pulsed lasers to probe the response of materials at pressures of hundreds of GPa, time durations of nanoseconds and fractions thereof, and strain rates of 10$^{\mathrm{6}}$ -- 10$^{\mathrm{10}}$ s$^{\mathrm{-1}}$ is revealing novel mechanisms of plastic deformation, phase transformations, and amorphization. This unique experimental tool, in combination with advanced diagnostics, analysis, and characterization, allows us to address fundamental questions on the extreme response of materials, such as the roles of shear and pressure, dislocation velocities, the transition between thermally-activated and phonon drag regimes, the slip-twinning transition, the flow stress at these strain rates, the ultimate tensile strength of metals, the mechanisms of void growth, phase transitions, and amorphization. In parallel with experiments, molecular dynamics simulations provide modeling and visualization at comparable strain rates (10$^{\mathrm{8}}$-10$^{\mathrm{10}}$ s$^{\mathrm{-1}})$ and time durations (hundreds of picoseconds). This powerful synergy is illustrated in our past and current work, using representative face-centered cubic, body-centered cubic, hexagonal, and diamond cubic materials. This research was conducted in collaboration with researchers from LLNL, U. of Cuyo (Argentina), U. of Rochester, and ORNL. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700